R2511-HP MSR Router Series ACL and QoS Configuration Guide(V5)

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Figure 6 Network diagram
Configuration procedure
1. Configure Device C to trust port priority.
# Assign port priority to Ethernet 1/1 and Ethernet 1/2. Make sure that the priority of Ethernet 1/1
is higher than Ethernet 1/2, and no trusted packet priority type is configured on Ethernet 1/1 or
Ethernet 1/2.
<DeviceC> system-view
[DeviceC] interface ethernet 1/1
[DeviceC-Ethernet1/1] qos priority 3
[DeviceC-Ethernet1/1] quit
[DeviceC] interface ethernet 1/2
[DeviceC-Ethernet1/2] qos priority 1
[DeviceC-Ethernet1/2] quit
Internet
Device A
Device C
Server
E
t
h
1
/
1
I
P
p
r
e
c
e
d
e
n
c
e
3
E
t
h
1
/
2
I
P
p
r
e
c
e
d
e
n
c
e
1
Device B
Eth1/3
E
t
h
1
/
1
E
t
h
1
/
2